package shiyan3;

public class Teacher {
	private int id;
	private String teacherName;
	private String sex;

	private Course[] cours;

	// 构造函数
	public Teacher() {
		cours = new Course[3];
	}

	public Teacher(int id, String teacherName, String sex) {
		this.id = id;
		this.teacherName = teacherName;
		this.sex = sex;

		cours = new Course[3];
	}

	public int getId() {
		return id;
	}

	public void setId(int id) {
		this.id = id;
	}

	public String getSex() {
		return sex;
	}

	public void setSex(String sex) {
		this.sex = sex;
	}

	public String getTeacherName() {
		return teacherName;
	}

	public void setTeacherName(String teacherName) {
		this.teacherName = teacherName;
	}

	public boolean addCourse(Course course) {
		boolean flag = false;
		if (!isSelectedCourse(course) && isNullCourse(course)) {
			for (int i = 0; i < this.cours.length; i++) {
				if (cours[i] == null) {
					cours[i] = course;
					course.addTeacher(this);
					flag = true;
					break;
				}
			}
		}
		return flag;
	}

	public void displayCourse() {
		System.out.println("教师" + this.id + this.teacherName + this.sex + "所教课程:");
		for (Course c : cours) {
			if (c != null) {
				System.out.print(c.getName() + " ");
			}
		}
		System.out.println();
	}

	public boolean isSelectedCourse(Course course) {
		boolean flag = false;
		for (Course c : cours) {
			if (c == course) {
				flag = true;
				break;
			}
		}
		return flag;
	}

	public boolean isNullCourse(Course course) {
		boolean flag = false;
		for (Course c : cours) {
			if (c == null) {
				flag = true;
				break;
			}
		}
		return flag;
	}

}